Answer:
Predators are animals that hunt and kill other animals for food. Both carnivores and omnivores can be predators. The other classification of carnivores and omnivores is scavengers, which means they feed off of animals that are already dead. Predators include lions, sharks and eagles.
An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt). Groundwater can be extracted using a water well.
Scientists often perform experiments to check and recheck their work. They also redo these experiments to ensure correct results.
Answer:
This is a plasmatic membrane (cell membrane) that bounds a cell.
